CA2040635C - Filtre de cigarette - Google Patents

Filtre de cigarette

Info

Publication number
CA2040635C
CA2040635C CA002040635A CA2040635A CA2040635C CA 2040635 C CA2040635 C CA 2040635C CA 002040635 A CA002040635 A CA 002040635A CA 2040635 A CA2040635 A CA 2040635A CA 2040635 C CA2040635 C CA 2040635C
Authority
CA
Canada
Prior art keywords
cylinder
filter element
tobacco smoke
filter
microfine fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002040635A
Other languages
English (en)
Other versions
CA2040635A1 (fr
Inventor
Warren Arthur Brackmann
Tow Pin Liew
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rothmans Benson and Hedges Inc
Original Assignee
Rothmans Benson and Hedges Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rothmans Benson and Hedges Inc filed Critical Rothmans Benson and Hedges Inc
Publication of CA2040635A1 publication Critical patent/CA2040635A1/fr
Application granted granted Critical
Publication of CA2040635C publication Critical patent/CA2040635C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/045—Tobacco smoke filters characterised by their shape or structure with smoke acceleration means, e.g. impact-filters

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
CA002040635A 1990-04-20 1991-04-17 Filtre de cigarette Expired - Fee Related CA2040635C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9008887.3 1990-04-20
GB909008887A GB9008887D0 (en) 1990-04-20 1990-04-20 Cigarette smoke filter

Publications (2)

Publication Number Publication Date
CA2040635A1 CA2040635A1 (fr) 1991-10-21
CA2040635C true CA2040635C (fr) 1997-03-18

Family

ID=10674714

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002040635A Expired - Fee Related CA2040635C (fr) 1990-04-20 1991-04-17 Filtre de cigarette

Country Status (8)

Country Link
US (1) US5190061A (fr)
EP (1) EP0453299B1 (fr)
JP (1) JP3090729B2 (fr)
AU (1) AU642236B2 (fr)
CA (1) CA2040635C (fr)
DE (1) DE69124819T2 (fr)
GB (1) GB9008887D0 (fr)
ZA (1) ZA912914B (fr)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5509429A (en) * 1989-03-02 1996-04-23 Kothmans, Benson & Hedges Inc. Uniform tar delivery profile filter
GB9117118D0 (en) * 1991-08-08 1991-09-25 Rothmans Benson & Hedges Control of cigarette smoke chemistry
US5524647A (en) * 1991-08-08 1996-06-11 Rothmans, Benson & Hedges, Inc. Control of cigarette smoke chemistry
GB9226940D0 (en) * 1992-12-24 1993-02-17 Rothmans Int Tobacco Cigarette filter rod elements and cigarettes incorporating such filter rod elements
GB9307710D0 (en) * 1993-04-14 1993-06-02 Rothmans Benson & Hedges Smoking apparatus-l
WO1995035042A1 (fr) * 1994-06-17 1995-12-28 Rothmans International Services Limited Filtre de cigarette en forme de tige et cigarettes comprenant un tel filtre
GB9712815D0 (en) * 1997-06-19 1997-08-20 British American Tobacco Co Smoking article and smoking material therefor
US7074170B2 (en) * 2002-03-29 2006-07-11 Philip Morris Usa Inc. Method and apparatus for making cigarette filters with a centrally located flavored element
US8240315B2 (en) * 2005-12-29 2012-08-14 Philip Morris Usa Inc. Smoking article with improved delivery profile
US7987856B2 (en) * 2005-12-29 2011-08-02 Philip Morris Usa Inc. Smoking article with bypass channel
PL2007233T3 (pl) 2006-03-28 2020-03-31 Philip Morris Products S.A. Wyrób do palenia z ogranicznikiem
US8353298B2 (en) * 2006-07-12 2013-01-15 Philip Morris Usa Inc. Smoking article with impaction filter segment
US8424539B2 (en) * 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
US8235056B2 (en) * 2006-12-29 2012-08-07 Philip Morris Usa Inc. Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system
TW200911138A (en) * 2007-03-09 2009-03-16 Philip Morris Prod Smoking articles with restrictor and aerosol former
TW200900014A (en) * 2007-03-09 2009-01-01 Philip Morris Prod Smoking article filter with annular restrictor and downstream ventilation
US20080216850A1 (en) * 2007-03-09 2008-09-11 Philip Morris Usa Inc. Restrictor attachment for unfiltered smoking article
TW200911141A (en) * 2007-03-09 2009-03-16 Philip Morris Prod Super recessed filter cigarette restrictor
EP2110031A1 (fr) 2008-04-18 2009-10-21 Philip Morris Products S.A. Appareil de fabrication de filtres
BRPI0912172B1 (pt) * 2008-06-02 2019-07-30 Philip Morris Products S.A. Artigo de fumar com seção transparente
US8122894B2 (en) * 2008-06-18 2012-02-28 Penny K Kilpatrick Cigarette and cigar container and disposal receptacle
US8424540B2 (en) * 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
US20110083687A1 (en) * 2009-10-09 2011-04-14 Philip Morris Usa Inc. Cigarette filter to reduce smoke deliveries in later puffs
AR080556A1 (es) 2009-10-09 2012-04-18 Philip Morris Prod Diseno de filtro para mejorar el perfil sensorial de articulos para fumar con boquilla de filtro de carbono
US8905037B2 (en) * 2009-10-15 2014-12-09 Philip Morris Inc. Enhanced subjective activated carbon cigarette
US9138016B2 (en) 2010-03-26 2015-09-22 Philip Morris Usa Inc. Smoking articles with significantly reduced gas vapor phase smoking constituents
CN108833639B (zh) 2012-06-29 2020-11-24 株式会社精好 耳机和立体声耳机
GB201219540D0 (en) 2012-10-31 2012-12-12 British American Tobacco Co A filter for a smoking article
GB201407056D0 (en) * 2014-04-22 2014-06-04 Essentra Filter Products Dev Co Pte Ltd Smoking article
JP6551919B2 (ja) 2014-08-20 2019-07-31 株式会社ファインウェル 見守りシステム、見守り検知装置および見守り通報装置
EP3236669A4 (fr) 2014-12-18 2018-10-03 Rohm Co., Ltd. Dispositif auditif à conduction par cartilage à l'aide d'unité de vibrations de type électromagnétique, et unité de vibration de type électromagnétique
JP2020053948A (ja) 2018-09-28 2020-04-02 株式会社ファインウェル 聴取装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685523A (en) * 1969-06-27 1972-08-22 Molins Machine Co Ltd Tobacco smoke filter
US3621851A (en) * 1969-11-26 1971-11-23 Kata Mfg & Filtering Co Filter for smoker's article
US3854384A (en) * 1971-05-24 1974-12-17 Brown & Williamson Tobacco Corp Method of making tobacco smoke filters
GB1381800A (en) * 1972-04-26 1975-01-29 Rothmans Of Pall Mall Filter for tobacco smoke
US4022222A (en) * 1975-11-06 1977-05-10 American Filtrona Corporation Tobacco smoke filter
GB8823902D0 (en) * 1988-10-12 1988-11-16 Rothmans Int Tobacco Cigarette filter rod elements & cigarettes incorporating such filter rod elements
EP0443227A1 (fr) * 1990-02-19 1991-08-28 Ito Corporation Microseringue analytique

Also Published As

Publication number Publication date
AU7508191A (en) 1991-10-24
EP0453299A1 (fr) 1991-10-23
JPH07289229A (ja) 1995-11-07
DE69124819D1 (de) 1997-04-10
CA2040635A1 (fr) 1991-10-21
US5190061A (en) 1993-03-02
JP3090729B2 (ja) 2000-09-25
ZA912914B (en) 1992-03-25
GB9008887D0 (en) 1990-06-20
EP0453299B1 (fr) 1997-03-05
AU642236B2 (en) 1993-10-14
DE69124819T2 (de) 1997-09-18

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